Silas haeeis



(N0 Modeh S. HARRIS. APPARATUS FOR MAKING RINGS, 0

OUPLING LiNKS, '&c. No. 297,268.

Patent ed Apr. 22, 1884.

' UNITED STATES PATENT OFFICE.

SILAS HARRIS, OF SAN FRANCISCO, CALIFORNIA.

APPARATUS FOR MAKING RINGS, COUPLING-LINKS, 84.0.

SPECIFICATION forming part of Letters Patent No. 297,258, dated April 22, 1884:.

Application filed October 30, 1883. No model thereof.

My invention relates to an apparatus for the manufacture of metal rings, car-coupling or other links, and similar oval or circular articles; and it consists, mainly, of dies so grooved as to receive the link or other article in different positions, so that it may be first formed and partially united, and then completely welded and finished at one heat, as will be more fully explained by reference to the accompanying drawings, in which Figure-l is a front elevation showing alink in the vertical groove with its open upper end ready to be closed. Fig. 2 is a plan. of the bottom die. Fig. 3 is a side elevation. Fig. 4. is a front elevation of a die for forming round links or rings. Fig. 5 is a plan. Fig. 6 is a side elevation. Fig. 7 is a side view of a link ready to be closed.

A is the bottom or stationary die, and B is the top die. The bottom die has its front grooved or channeled vertically to receive the body ofa link, 0, one end of which is formed while the other is open. The curved bottom end rests upon an anvil, D, shaped to fit it, and the upper ends project a short distance above the arched projection E, which extends upward between its sides from the bottom die, as shown. The open ends of the link are bent to one side in opposite'directions, as shown in Fig. 7, so that when closed they will pass each other and be in position to be welded. The top die, B,:has an arch, F, inits lower surface, corresponding to the curve which it'is desired to give the end of the link. This arch stands just above the vertical channel in the lower die, within which the link stands. The upper die is fixed in a moving head, by which it may be brought down forcibly upon the upwardlyprojecting ends of the link C, and this action bends them over the projection E, 1apping them upon each other at the same time. The top of the lower die has a grooved channel, G, in it, extending back some distance upon its face and curved at the rear to the shape of the end of a finished link The upper ie has a corresponding groove in its face, and after the ends of the link have been bent or closed together by the first action of the die the link is simply turned, so as to lie in the channel G in the face of the block, and the upper die is allowed to fall upon it. This closesthe lapped ends together and completes the weld, at the same time shaping the end of the link to its proper form. Any surplus metal will be forced into a shallow chamber,H, around the edge of the channel G, and may afterward be sheared off.

Figs. 4, 5, and 6 show the construction of dies for forming rings, the principle being the same, but the shape slightly different. Rings are thus closed by one movement of the die, and are then laid flat in the groove upon the anvil and the weld is completed by a second stroke of the upper die, the surplus metal being pressed out and cut off, as before described. In this manner rings, links, and similar articles are easily and rapidly finished at a single heat and with two movements.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is 1.

1. An apparatus for forming rings, link &c., consisting of a bottom die channeled upon its front vertical face and upon its horizontal face, and having the arch E between the sides of the vertical channel, in combination with a top die having an arched face in line above the vertical channel of the lower die, and a horizontal channel corresponding with the horizontal channel of the lower die, substan- SILAS HARRIS.

\Vitnesses:

H. 0. LEE, S. H; NoURsn. I 

